Home / 36,855.78-55,230.86-21,028.07

Finding the Fourth Proportional to 36,855.78, 55,230.86 and 21,028.07

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Solution

The fourth proportional to 36,855.78, 55,230.86 and 21,028.07 is: 31,511.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,855.78 : 55,230.86 = 21,028.07 : x
  2. Step 2: Convert to fraction form
    36,855.78/55,230.86 = 21,028.07/x
  3. Step 3: Cross multiply
    36,855.78x = 55,230.86 × 21,028.07
  4. Step 4: Simplify right side
    36,855.78x = 1,161,398,580.89
  5. Step 5: Solve for x
    x = 1,161,398,580.89/36,855.78
  6. Step 6: Final answer
    x = 31,511.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.